== sanity test 60c: unlink file when mds full ============ 12:46:01 (1788281161)
create 5000 files
 - open/close 405 (time 1788281175.60 total 10.01 last 40.45)
 - open/close 933 (time 1788281185.62 total 20.03 last 52.71)
 - open/close 1444 (time 1788281195.64 total 30.05 last 51.00)
 - open/close 1996 (time 1788281205.64 total 40.05 last 55.20)
 - open/close 2494 (time 1788281215.66 total 50.07 last 49.68)
 - open/close 2961 (time 1788281225.67 total 60.08 last 46.68)
 - open/close 3469 (time 1788281235.67 total 70.08 last 50.79)
 - open/close 3910 (time 1788281245.68 total 80.09 last 44.04)
 - open/close 4359 (time 1788281255.68 total 90.09 last 44.90)
 - open/close 4786 (time 1788281265.71 total 100.12 last 42.61)
total: 5000 open/close in 104.04 seconds: 48.06 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788281274 ; total 0 ; last 0)
total: 5000 unlinks in 73 seconds: 68.493149 unlinks/second
fail_loc=0